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Add a build step to generate extended metrics that additionally contain glyph widths

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Summary:
The ability to use pre-determined character widths will benefit alternative
layout engines such as gagern's canvas layout engine.  I would also like to
experiment would using CSS transforms to absolutely position each glyph.  This
diff adds a new make rule, make extended_metrics, which generates metrics that
also containing glyph widths.

Test Plan:
- run `make extended_metrics`
- verify that fontMetricsData.js contains entries with 5 numbers instead of 4

Reviewers: emily alpert
This commit is contained in:
Kevin Barabash
2015-09-30 09:58:56 -07:00
parent e9f4b07611
commit 1573e1eed6
5 changed files with 23 additions and 7 deletions
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3
Makefile
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@@ -85,6 +85,9 @@ PYTHON=$(shell python2 --version >/dev/null 2>&1 && echo python2 || echo python)
metrics:
cd metrics && $(PERL) ./mapping.pl | $(PYTHON) ./extract_tfms.py | $(PYTHON) ./extract_ttfs.py | $(PYTHON) ./format_json.py > ../src/fontMetricsData.js
extended_metrics:
cd metrics && $(PERL) ./mapping.pl | $(PYTHON) ./extract_tfms.py | $(PYTHON) ./extract_ttfs.py | $(PYTHON) ./format_json.py --width > ../src/fontMetricsData.js
clean:
rm -rf build/*